Home / 2,489.51-3,735.18-1,190.09

Finding the Fourth Proportional to 2,489.51, 3,735.18 and 1,190.09

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Solution

The fourth proportional to 2,489.51, 3,735.18 and 1,190.09 is: 1,785.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,489.51 : 3,735.18 = 1,190.09 : x
  2. Step 2: Convert to fraction form
    2,489.51/3,735.18 = 1,190.09/x
  3. Step 3: Cross multiply
    2,489.51x = 3,735.18 × 1,190.09
  4. Step 4: Simplify right side
    2,489.51x = 4,445,181.69
  5. Step 5: Solve for x
    x = 4,445,181.69/2,489.51
  6. Step 6: Final answer
    x = 1,785.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.